Book-delivery mechanism



June 8 1926. 1,587,759 M. cHRlsTz-:NSEN

' B OOK DELIVERY MECHANISM Filgd Jan. 2, 1926 INVENTOR.

A' TT ORNE Y.

lierre t3, i926.

unirse sra'rss rATEN'r oFFIcE.

MACHINE COMPANY, 0F RACINE, "WISCONSN, A CORPORATION 0F WISCONSIN'.

BOOKDELIVERY MECHANISM.

Application filed` January 2, 1926. Serial N'o. ,78,928.,

This invention relates to book-stitching machines, and more particularlyto the delivery' mechanism for receiving fvititched or completed books.Y

l'n my prior United States Patent No. 1,423,6ei7, of July 25, 1922, Ihave shown a delivery meehanisn'i for signature-stitching machines whichincludes a plurality of endf less belts. VIn practice it has been foundthat belt-type delivery mechanism necessitates considerable care andquite frequent replacement', of the belts, due to wear, and The objectof this invention is to provide a delivery n'iechanism in which theVbelts are eliminated and the books are moved along by :i racl'having aeon'iposite motion to produce the forward feed of the books. p

The invention further consists inthe several features hereinafter setforth and more.particularly defined. by claims at the conclusion hereof.

In the drawings, Fig. 1 is a side elevation view of deliveryn'iechanism-embodying the invention, parts being broken away and partsbeing shown in section along the line- 1-1 of Fig. 3;

Fig. 2 is an end elevation view of the delivery mechanism;

Fig. 3 is a plan view of said mechanism, parts being broken away andparts being shown in section.

It will be understood that the delivery mechanism embodying theinvention may be used in connection with any book-stitching machine, andthe delivery end of one such machine is shown in my prior United StatesFatent No. 1,423,647, above mentioned, wherein mechanism including a flyis designed to remove the stitched signatures from the machine anddeposit them on the delivery mechanism, preferably arranged at the frontside of the machine.

The delivery mechanism forming the subject of this invention embodies arelatively fixed table or book-support and a movable table cooperatingtherewith.

The fixed table includes end frames 4 and spaced slats or bars 5 uponwhich the books are deposited.

The movable table includes a frame and spaced slats or bars 6 carried bythis frame and movable within the spaces formed be tween the slats 5.The frame carrying the bars 6 includes transverse frame members 7 the Iand ylongitudinally extending side frames 8 to which brackets 9 aresecured adjacent each end. rlphe brackets 9 at one end of this fran'iehave vertically disposed slots 1 0 through which a shaft 11 passes Aandthe brackets at the other end of this frame have similar slots throughwhich a shaft 12 passes. Each ofthe shafts 11 and 12 are journalled inguide bars 13 slidably mountedin guideways 14 in the end frames 4L. Thebars 13 are connected .by a transverse bar or. bars i3. .i i The shafts11 and 12are drivingly coh-v nected by a sprocket 15 on each shaft andachain 16. The shaft12 carries a sprocketwheel 17 connected by a chain418 to va sprocket 19 on a drive shaft 20.Y Since the bars 1 3`associated with the shaft 12 have to reciprocate, the chain 1 8 isprovided with slack to accommodatethis movement and a tensioningdeviceftakes up this slack, Asaid device., comprising an idler sprocketV21 mounted on a'swinging arm .22 hinged at 23 to the .fixed frame 4 andheld by a spring 25 in engagement with the chain 18.

F or reciprocating the bars 13, and hence the bars 6, a cam 26 on theshaft 12 engages a roller 27 on a shaft 28.0arried by a bracket 29 onthe Xed frame 4, the cam being held against said roller by springs 30connected to loose collars 31 on the shaft 12 at one end and to theframe 4 .at their other ends so that as the shaft 12 is rotated the cam26 cooperates with said roller to produce the desired movement.

For moving the bars 6 up and down, there are cams 32 on the projectingends of the rotating shafts 11 and 12 which engage rollers 33 'on studshafts 34 on the side frames 8. Y

The cam 26 and the cams 32 areso de- A signed that the bars 6 yare firstmoved upwardly from a position slightly below the level of the bars 5,as shown in full lines, to .a position slightly above, as shown indotted lines in Fig. 2, so that the books are raised off the bars 5.While in raised position the cam 26 acts to move the bars 6 through theassociated frame members, including the bars 13, forward to carry theraised'books away from the main machine and thereafter the cams 32permit the bars 6 to be lowered to their full line position to depositthe books on the fixed table and then the cam 26 form or arrangement-of-parts except in so far as such limitations are specified in theappended claims.

'What I claim as myl invention is 1. In a book-delivery mechanism, thecombination of a'iixed'table having spaced booksupports, a movable tablehaving spaced book-supports working in the spaces between thebook-supports'of saidfixed table, means for elevating, and'depressingsaid movable tablerelativeto said fixed table, and separate Ymeans formoving said 4movable' table forwardlyl while elevatedlto advance thebooks along said fixed table.

2. In` abook-delivery1nechanism,the combination 'of -a fixed vtablehaving spaced book-supports,l a movable table having spacedbook-supports'working in they spaces between the book-supports 'ofthexed table and movable above the same, saidmovable table including "aframe carrying its `book-supports and siidable 4guide-bars, meansk formoving saidframe vertically with respect to sai'd-guifde-bars, and meansfor reciprocating 'said 'guide-'bars while the'frame 1s elevated toadvance the books along said fixed table.

3. In a book-delivery mechanism, the combination of a fixed table havingspaced booksupports, a movable table having spaced book-supportsworkingin the spaces between the book-supports of the fixed table andlmovable above the same, said movable table including a frame carryingits book-supports and slidable guide bars, rotating shafts journalled nsaid guide bars and provided with cams for moving said frame vertically,and means `for reciprocating said guide bars while the frame .iselevated to advance the booksalong said fixed table.

4. In a book-delivery mechanism, the combination of a fixed table havingspaced booksupports,' a movable table having spaced book-supportslworking in the spaces between the book supports `of the fixed table andmovable above the saine, said movable table including a frame carryingits booksupports and slidabie guide bars, rotating shafts journalled insaid guide bars .and provided with cams for movin@r said framevertically, and means inclu ing a cam mounted on one of' said shafts forreciprocating said guide bars while the frame is elevated to advance thebooks along said fixed table.

In testimony whereof, I afiix my signature.

MARTIN CHRISTENSEN.

